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    题名: Dual-curing of anionic aqueous-based polyurethanes at ambient temperature
    作者: Chen, Guan-Nan;Chen, Kan-nan
    贡献者: 淡江大學化學學系
    关键词: aqueous-based PU;epoxy;aziridinyl latent curing;dual-curing
    日期: 1998-02-28
    上传时间: 2009-11-04 16:54:08 (UTC+8)
    出版者: John Wiley & Sons
    摘要: Polyurethane (PU) prepolymers are prepared by a polyaddition of isophorone diisocyanate, polypropylene glycol-1000, and 2,2-dimethylolpropanic acid. The anionic aqueous-based PU dispersions are derived from a water dispersion process of these NCO-terminated PU prepolymers together with a neutralization and a chain extension. They have both terminal amino and pendent carboxylic groups which are potentially reactive sites toward a di-functional epoxy and a tri- or di-aziridinyl compound of a dual-curing PU system, respectively. The stabilities of the resulting PU dispersions on zeta potential and particle size distributions are investigated. The improvements on mechanical, physical, and thermal properties of these dual-cured PU systems are also evaluated.
    關聯: Journal of Applied Polymer Science 67(9), pp.1661-1672
    DOI: 10.1002/(SICI)1097-4628(19980228)67:9<1661::AID-APP18>3.0.CO;2-X
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文


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